private void SubscribeEvents(ReplicatedMapEventHandlers <TKey, TValue> events)
{
// TODO when event states are available, re-implement as ...?
/*
* await dictionary.SubscribeAsync(events => events
* .EntryAdded((sender, args, state) => { state.Foo++; }), state);
*/
events
.EntryAdded((sender, args) => Interlocked.Increment(ref EntryAddedCount))
.EntryUpdated((sender, args) => Interlocked.Increment(ref EntryUpdatedCount))
.EntryRemoved((sender, args) => Interlocked.Increment(ref EntryRemovedCount))
.Cleared((sender, args) => Interlocked.Increment(ref ClearedCount));
}
private async Task <Guid> SubscribeAsync(Action <ReplicatedMapEventHandlers <TKey, TValue> > events, Maybe <TKey> key, IPredicate predicate, object state)
{
if (events == null)
{
throw new ArgumentNullException(nameof(events));
}
var handlers = new ReplicatedMapEventHandlers <TKey, TValue>();
events(handlers);
// 0: no entryKey, no predicate
// 1: entryKey, no predicate
// 2: no entryKey, predicate
// 3: entryKey, predicate
var mode = key.Match(1, 0) + (predicate != null ? 2 : 0);
var keyv = key.ValueOrDefault();
var subscribeRequest = mode switch
{
0 => ReplicatedMapAddEntryListenerCodec.EncodeRequest(Name, Cluster.IsSmartRouting),
1 => ReplicatedMapAddEntryListenerToKeyCodec.EncodeRequest(Name, ToData(keyv), Cluster.IsSmartRouting),
2 => ReplicatedMapAddEntryListenerWithPredicateCodec.EncodeRequest(Name, ToData(predicate), Cluster.IsSmartRouting),
3 => ReplicatedMapAddEntryListenerToKeyWithPredicateCodec.EncodeRequest(Name, ToData(keyv), ToData(predicate), Cluster.IsSmartRouting),
_ => throw new NotSupportedException()
};
var subscription = new ClusterSubscription(
subscribeRequest,
ReadSubscribeResponse,
CreateUnsubscribeRequest,
ReadUnsubscribeResponse,
HandleEventAsync,
new SubscriptionState(mode, Name, handlers, state));
await Cluster.Events.AddSubscriptionAsync(subscription).CfAwait();
return(subscription.Id);
}
public SubscriptionState(int mode, string name, ReplicatedMapEventHandlers <TKey, TValue> handlers, object state)
: base(name, handlers, state)
{
Mode = mode;
}